本篇内容介绍了“mysql如何查询数据库容量”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
mysql查询数据库容量的方法:1、打开DOS窗口,然后进入mysql的bin目录下;2、执行“SELECT table_schema AS 'shujuku',table_name AS 'biaoming',table_rows AS 'jilushu',TRUNCATE (data_length / 1024 / 1024, 2) ...”语句即可查看所有数据库各表容量。
MySql查看数据库及表容量并排序查看所有数据库容量
SELECT table_schema AS '数据库', sum(table_rows) AS '记录数', sum( TRUNCATE (data_length / 1024 / 1024, 2) ) AS '数据容量(MB)', sum( TRUNCATE (index_length / 1024 / 1024, 2) ) AS '索引容量(MB)' FROM information_schema. TABLES GROUP BY table_schema ORDER BY sum(data_length) DESC, sum(index_length) DESC;
查看所有数据库各表容量
SELECT table_schema AS '数据库', table_name AS '表名', table_rows AS '记录数', TRUNCATE (data_length / 1024 / 1024, 2) AS '数据容量(MB)', TRUNCATE (index_length / 1024 / 1024, 2) AS '索引容量(MB)' FROM information_schema. TABLES ORDER BY data_length DESC, index_length DESC;
查看指定数据库容量
SELECT table_schema AS '数据库', sum(table_rows) AS '记录数', sum( TRUNCATE (data_length / 1024 / 1024, 2) ) AS '数据容量(MB)', sum( TRUNCATE (index_length / 1024 / 1024, 2) ) AS '索引容量(MB)' FROM information_schema.tables where table_schema = 'your_table_name';
查看指定数据库各表容量
SELECT table_schema AS '数据库', table_name AS '表名', table_rows AS '记录数', TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '数据容量(MB)', TRUNCATE ( index_length / 1024 / 1024, 2 ) AS '索引容量(MB)' FROM information_schema.TABLES WHERE table_schema = '指定的库名' ORDER BY data_length DESC, index_length DESC;